"SerialNumber": "arn:aws:iam::12345678910:mfa/kurono-test-mfa" }, { "SerialNumber": "arn:aws:iam::12345678910:mfa/root-account-mfa-device", "User": { "UserId": "12345678910", "Arn": "arn:aws:iam::12345678910:root", "CreateDate": "2017-07-27T06:47:31+00:00", "PasswordLastUsed": "2017-07-27T06:47:59+00:00" }, "EnableDate": "2017-07-27T07:03:10+00:00" }, ] }